<template>
    <el-container class="home-container">
      <!-- 头部区域 -->
      <el-header>
        <div>
          <!-- 黑马logo -->
          <img src="../assets/heima.png" alt="">
          <!-- 顶部标题 -->
          <span>电商后台管理系统</span>
        </div>
        <el-button type="info" @click="logout"> 退出 </el-button>
      </el-header>
      <!-- 页面主体区域 -->
      <el-container>
        <!-- 侧边栏 -->
        <el-aside :width="isCollapse?'64px':'200px'">
          <div class="toggle-button" @click="toggleCollapse">|||</div>
          <!-- 侧边栏菜单 -->
          <el-menu
            router
            :default-active="activePath"
            background-color="#333744"
            text-color="#fff"
            active-text-color="#ffd04b" :unique-opened="true" :collapse="isCollapse" :collapse-transition="false">
            <!-- 一级菜单 -->
            <el-submenu :index="item.id+''" v-for="(item, index) in menulist" :key="index">
              <!-- 一级菜单模板 -->
              <template slot="title">
                <!-- 图标 -->
                <i :class="iconsObj[item.id]"></i>
                <!-- 文本 -->
                <span>{{item.authName}}</span>
              </template>
              <!-- 二级子菜单 -->
              <el-menu-item :index="'/' +subItem.path" v-for="(subItem, index) in item.children" :key="index"
               @click="saveNavState( '/' +subItem.path)">
                <!-- 二级菜单模板 -->
                <template slot="title">
                  <!-- 图标 -->
                  <i class="el-icon-menu"></i>
                  <!-- 文本 -->
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>
        <!-- 主体结构 -->
        <el-main>
            <router-view></router-view>
        </el-main>
      </el-container>
    </el-container>
</template>

<script>
import  {getMenuList_api} from "@/api"
export default {
  data() {
    return {
      // 左侧菜单数据
      menulist: [],
      iconsObj: {
        '125': 'iconfont icon-user',
        '103': 'iconfont icon-tijikongjian',
        '101': 'iconfont icon-shangpin',
        '102': 'iconfont icon-danju',
        '145': 'iconfont icon-baobiao'
      },
      // 是否折叠
      isCollapse: false,
      // 被激活的链接地址
      activePath: ''
    }
  },
  created() {
     this.getMenuList()
     this.activePath = window.sessionStorage.getItem('activePath')
     console.log(this.activePath,777);
     
  },
  methods: {
    logout() {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 点击按钮，切换菜单的折叠与展开
    toggleCollapse() {
      this.isCollapse = !this.isCollapse
    },

    async getMenuList(){
    //    const { data: res } = await this.$http.get('menus')
       const  {data:res} =await getMenuList_api();
       console.log(res,333);
       if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
       this.menulist=res.data;
       
    },
/* 菜单高亮 */
    saveNavState(activePath){
        console.log(activePath,8);
        
        window.sessionStorage.setItem("activePath",activePath);
        this.activePath=activePath;
    }
  }
}
</script>

<style lang="less" scoped>
.home-container {
  height: 100%;
}
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between;
  padding-left: 0;
  align-items: center;
  color: #fff;
  font-size: 20px;
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}

.el-aside {
  background-color: #333744;
  .el-menu {
    border-right: none;
    .el-submenu{
        text-align: left;
    }
  }
}

.el-main {
  background-color: #eaedf1;
}

.iconfont {
  margin-right: 10px;
}

.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>
